Bumper-bracket



elaanr meur-inn., on MILWAUKEE, wrsconsrii.

BUMPER-:Bamsan Specification of Letters Patent.

raeemea June ii, igaac.

Application filed March 20, 1920. 'serial No.V 367,408.

State of Wlisconsin, have invented certain' -new and useful Improvements 1n- Bumper- .Brackets, of whlch the followmg is a specificatiomreference being had to the aceoA panying drawing, forming a part thereof.

This lnvention relates more particularly to means' for'mounting. bnmpers on automobiles of the Overland type havin outwardly projecting 'V longitudinal .rame flanges. p

The main objects of the invention are to facilitate the application 'of bumpers lto automobiles of this type; to accurately po'- sition and securely 'hold the bumpers and bumper supporting and fastening members in place; to relieve the clamping bolts. and nuts' from excessive stresses and strains resulting from shocks or collisions of the bumpers with obstructions or from the tightening of the .nuts on the bolts; and generally to improve the 'construction of devices of this class.

lt consists in lthe construction, larrangement and. combination of parts as hereinafter particularly described and. pointed out in the claims.

In the accompanying drawing like characters designate the same parts in the several figures. C

v'Figure 1 is apla-n view oli a bumper braclret embodyfing the invention as applied to the front end of an Overland automobile fr-ame, for which it is specially designed; Fig.'2 is an enlarged elevation of the inner side of a portion of the bracket, lthe hook clampm'g bolts being shown in cross section; Fig. is an enlarged cross section'on the` line 3-3, Fig. 1; and Fig. Il is a similar sectionl on'the line 4-4, Fia 1- While the bracket shown by the drawing is specially designed forthe front end of ani Overland automobile frame, it is ap- -plica'nle with little or no change, to the rearend of the frame, and tosimilar frames having ontwardly projecting longitudinal :flanges rllhe bracket. comprises 'an attachment platea, which` is formed' or provided` at one end with a bumper su porting armfb,

with! which thel bumper ar is connected 111 the usual or any suitable manner.

The plate a, which is fitt'ed to bear against the koutwardly projecting flanges c of a channel side member d of the frame, as shown in Figs. 3 and 4, isfo'rmed or'provided on the inner, side with positioning bearings adapted to engage with opposite lsides of the flanges 0.: The special bracket shown` in the drawing is' formed :on .the lower edgeof the attachment platea', with downwardly 'projectingIeazrs'v candy, having holes therein for 'clamping bolts g'and h; The ear e isextended. inwardlyv and forms a sleeve lor lboss i, which serves as a support for t-he'shank/offthe 'bolt g, to

hold the boltv in its proper'pjosition at' right angles to the plat/e, and as a positioning bearing for engagement'with the under side ofthe lower frame fiange c, as shown in The bolt hole in the ear f is locatedclose to the under side of the lower flange c, so that the shank of the boltft will engage with the flange and serve asa positioning bearing for the plate a, as shownin' Fig. 4.

The plate a is. also formed onl its v:inner side .with inwardljf, projectingf vlu'gs or flanges k., Z and m, which are'adapted to engage with the frame flanges c'andl thus serve as `positioning bearings 'for the plate.

Asfshow'n in Figs. 2, 3 and fi, the lugs or flanges 70 and Z are arranged above and opposite the holes for the bolts g `and '71,,

in vposition to engage' with the upper side leo ber p, whichiin Overland cars asilat pres- 1 ent constructed, is riveted or 'fastened to and connects the channel side members d of the frame at the front endthereof, thev frame being provided with a similar cross connecting member at the rear end.

The lugs or iianges "k, Z and mfengaging with opposing sides of the-outwardly projecting frame flanges.4 c, andfthe lug's or flanges k and Z, Which 'might'obviously be extended and'merg'efiin a*-single, .flange, en-

a. to, and secureiy gaging the upper side of the lower flange 0 opposite the boss i and the shan'k of the belt h which engage the lower side of said lian e, determine the position of the plate a on t e frame in applying the braclret therehold it in place when the nuts are moderately tightened on the bolts, thereby obviating' the necessity of 'tightening the nuts to the extent of stripping or injuring the screw threads, and relieving the bolts of excessive shearing stresses and strains result-ing from Shocks or collisions of the bumper with obstructions.

To further relieve the clamping bolts from stresses and strains resulting from the impact of the bumper with obstructions and end thrust on the arm b, the plate a may,

he formed as shown, at the end next to the arm, with athrust abutment u, adapted to engage with the end of the side frame member d. Y a The number, arrangement and extent of the lugs or fianges on the attachment plate, and the number and arrangement of `the clamping bolts for fastening the bracket to the frame, may be varied to adapt the bracket to varying conditions and to variations in the construction of the frame, without material change in the mode of application and operation of the bracket, and without departure from the principle of 'the invention. As for example, a single clamping bolt like either of the bolts g and h, or two or more bolts with or without supporting bosses z', may be employed with each attachment plate a. like the bolts g, with bosses a' therefor, are used at the rear end of an Overland frame, for fastening each bracket thereto.

W'ith a frame and brackets of the design shown and described, drilling holes in or otherwise cutting or marring the frame or other parts of an automobile for the attachment of a bumper, is avoided.

I claim:

1. In a hamper bracket for automohiles having longitudinally flanged frame members, the combination of an attachment plate fitted to bear against the side of a frame member, and provided with positioning bearings adapted to engage with opposite faces of the frame member against which said plate is seated, and a holt having a nut threaded thereon for clamping said plate to the frame member with the positioning bearings in engageinent with opposite faces thereof.

2. In a bumper hraciret for automobiles having an cutwardly fianged frame memher, the combination of an attachment plate provided with. inwardly projecting positioning bearings adapted 'to engage with opposite faces of an outwardly projecting frame iiange against which the plate is seated, and a belt ha 'ng a nut threaded In practice, two bolts- Latar-.wa

thereon for clamping said plate to the frame member.

3. In a bumper bracket for automohiles having an outwardly flanged frame member, the combination of an attachment plate provided with inwardly projecting positioning bearings adapted to engage with opposite faces of outwardly projecting frame flanges against which the plate is sea-ted, and a clamping bolt having a nut threaded thereon for clamping said plate to the frame member.

4. In a bumper bracket for autemohiles` having an outwardly fianged frame member, the combination of an attachment plate formed with bolt holes and provided with inwardly projecting positioning bearings adapted to engage with opposite faces of an outwardly projecting 'frame flange against which the plat-e is seated, and. clamping bolts provided with nuts and adaptedto pass through the holes in said plate and to engage a part of the frame.

5. In 4a bumper bracket for automobiles having inwardly and outwardly projecting longitudinal frame fianges, the combination of an attachment plate formed with a bolt hole and provided with inwardiy projecting positioning bearings adapted to engage with opposite flange faces of the frame member against which the plate is seated, a hook belt adapted to pass through 'the hole in the piate and to engage with an inwardly projiecting frame fiange, and a nut threaded on the outer end of the bolt.

6. ln a bumper bracket for a utomobiles having outwardly projecting longitudinal frame flanges, the combination of an attachment plat-e provided at one end With a bumper supporting arm and having inwardly lffrojecting positioning bearings adapted to engage with opposite liange faces of the frame member against which the plate is seated, and a bolt having a nut threaded thereon for clamping the plate to said frame. member.

7. In a bumper braciret for autom'obiles having inwardly and out-wardly projecting longitudinal frame flanges, the combination of an attachment plate provided at one end- With a bbumper supporting arm and formed with a bbelt hole and at a distance therefrom with inwardly projecting opposing positioning 'hearings adapted to engage with opposite faces of an outwardly projecting frame flange against Which the plate is sea-ted, a 'hook belt adapted to pass through the hole in the plate and engage with an inwardly pi'ojecting frame fiange, and a nut threadedon the outer end of the holt.

8. in a bumper hracket for automohiles having inwardly and out'wardly projecting longitudinal frame flanges, the combination yae lit)

of an attaehinern';V bplate having a bumper naraon.

' adapted to engage with opposite faces of outwardly projecting frame flanges against Which the plate is'seated, a hook hoit adapted to pass through the hole in the plat/e and to engage With an inwardly projeeting frame fiange, and a nut threaded on the outer end of the holt.

. 9. In a bumper bracket for automohiles haying .inwardly and outwardiy. projecting longitudinal frame fianges, the combination v of an attachment-plate provided at one end with a bumper supporting arm and formed With bolt holes and With inwardly projecting positioning bearings adapted to engage 'With opposite faces of an outwardly -projecting frame fiange against Which the plate is seated, hook bolts adapted to pass through the holes in the plate and engage With an inwardly projeeting frame fiange, and nutsl threaded on the outer ends of 'the bolts.

10. In-abumper bracket for automobiles' having inwardly and outwardly projecting longitudinal frame fianges, the combination -of an attachment plate provided at one end With a bumper supporting 'arm and formed .With bolt holes and with inwardly projecting' positioning bearings adapted to engage fiil with opposite faces of outwardiy projeetingj frame fianges against Which. the plate is seated, hook bolts adapted to pass through' the holes in the plateand engage With an inwardly projecting frame flange, and nuts threaded on the outer ends of the bolts.

11. In a bumper braeket for automoloiles having outwardiy projeeting longitudiiiai frame flanges, the combination of an attachment plate 'formed with inwardly project ing positioning bear-inge adapted to engage Y With opposite faces of the frame fiange against Which the plate is seated, one of said bearings ext-ending around a hoit hole and forming a support for a bolt passing therethrongh, clamping bolts adapted to pass through the holes in the plate and to 'engage With a part of the frame,the hoie for one of the bolts being positioned so that I of the bolts.

12. in a bumper hraeket for autoniobiies having outwardiy projeeting longitudinai frame fianges, the combination of an attach'- mentfplate formed with belt hoies and With. inwardly projecting positioning bearings adapted to engage With opposite faces of the frame ilanges against Which. the plate is seated, one of said bearings forming a boh; supporting boss around one of the holes and `the hole for the other bolt being positioned so thatl the shank of .the holt Will hear against the adjacent side of one of the flanges, clamping bolts adapted to pass through the -lioles in the plate and to engage With a partof the frame, and nuts threaded on the outer ends of the holts. 1

13. In a bumper braoket for automobiles having outwardly projecting' iongitudinal frame fianges, the combination of an attachment plate formed With positioning bearings adapted to engage With opposite flange faces of the frame member against Which the plate V is seated, said plate being also formed With an inwardly projecting thrilst ahutment adapted to engage with the end of said frame meindrery and hoit having a mit threaded thereon for clampingq the piate to said frame member. a

hole and a holt supporting boss aolf-rptedv to engage the enter face or one of said fianges,

and a clamping belt adapted to pass through the hole the plate and to engage a part of the frame.

inwitness Whereof I hereto afiix my' signature.

GRANT F. DISCHER. 

